* In the classic Robin Hood legends: Maid Marian is Robin Hood's true love and they ultimately marry.
* In most modern retellings: The relationship between Marian and Robin remains central, though there are variations in their dynamic.
* In the BBC series "Robin Hood": The show portrays a more complicated relationship, but ultimately Robin and Marian are together. While Guy of Gisborne is a villain and a rival for Marian's attention, he never ends up marrying her.
Therefore, the idea of Marian marrying Guy of Gisborne is not supported by any traditional or popular interpretation of the Robin Hood legend.